Fenestration of the internal carotid artery: a rare mass of the hypotympanum associated with persistence of the stapedial artery

• Published in: American journal of neuroradiology : AJNR Vol. 16; no. 4; pp. 908 - 910
• Main Authors: Koenigsberg, RA, Zito, JL, Patel, M, Swartz, JD, Goldofsky, E, Zahtz, G
• Format: Journal Article
• Language: English
• Published: Oak Brook, IL Am Soc Neuroradiology 01-04-1995; American Society of Neuroradiology
• Subjects: Arteries - abnormalities; Biological and medical sciences; Carotid Artery, Internal - abnormalities; Carotid Artery, Internal - diagnostic imaging; Case Reports; Cerebral Angiography; Diagnosis, Differential; Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology; Ear, Middle - blood supply; Female; Humans; Medical sciences; Middle Aged; Non tumoral diseases; Otorhinolaryngology. Stomatology; Stapes - blood supply; Tinnitus - etiology; Tomography, X-Ray Computed; Human; Origin; Internal carotid; Cardiovascular disease; Exploration; Congenital disease; Artery; Arterial disease; Vascular disease; Case study; Embryology; Malformation; Medical imagery; Diagnosis; Technique; Woman
• ISSN: 0195-6108; 1936-959X

A 61-year-old woman was examined because of unilateral nonpulsatile tinnitus involving the right ear. CT scanning showed a soft-tissue mass in the hypotypanum. Angiographically, the mass was identified as a fenestrated or duplicated internal carotid artery associated with persistence of the stapedial artery. Embryologic considerations are discussed.